/* SaaS Command Center - Premium Variables */
:root {
    --bg-main: #06090f;
    --card-bg: rgba(17, 25, 40, 0.75);
    --accent: #0070f3;
    --accent-glow: rgba(0, 112, 243, 0.4);
    --danger: #ff4d4d;
    --success: #00ff94;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --sidebar-width: 260px;
}

body {
    background: radial-gradient(circle at 0% 0%, #111827 0%, #06090f 100%);
    color: var(--text-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    margin: 0;
    overflow-x: hidden;
}

/* Premium Layout Container */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* SaaS Sidebar Navigation */
.sidebar {
    width: var(--sidebar-width);
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 3rem;
}

.brand-section h1 {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin: 0;
}

.nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 12px;
    margin-bottom: 8px;
    transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--accent);
    box-shadow: 0 4px 15px var(--accent-glow);
}

/* Main Content Area */
.main-view {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 2rem 3rem;
}

/* Modern Header Stats */
.header-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.stat-card h4 {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card .value {
    font-size: 2.2rem;
    font-weight: 700;
    margin-top: 10px;
}

/* Channel Grid & Cards */
.channel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 2rem;
}

.shield-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 1.5rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.shield-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

/* Video Matrix */
.video-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(0, 0, 0, 0.2);
    padding: 10px;
    border-radius: 14px;
    margin-top: 10px;
}

.video-item img {
    width: 90px;
    border-radius: 8px;
}

.pulse-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
    display: inline-block;
    margin-right: 8px;
}